ST-45 PUMP — MAINTENANCE (PUMP)
WHEEL BEARINGS
After every 6 months of operation inspect the wheel bearings. Once a year, or when required, disassemble the wheel hubs remove the old grease and repack the bearings forcing grease between rollers, cone and cage with a good grade of high speed wheel bearing greases (never use grease heavier than 265 A.S.T.M.penetration “No.2.”).
1.Fill the wheel hub with grease to the inside diameter of the outer races and also fill the hub grease cap.
2.Reassemble the hub and mount the wheel.Then tighten the adjusting nut, at the same time turn the wheel in both directions, until there is a slight bind to be sure all the bearing surfaces are in contact.
3.Back off the adjusting nut 1/6 to 1/4 turn or to the nearest locking hole or sufficiently to allow the wheel to rotate freely within limits of .001” to .010” end play. Lock the nut at this position.
4.Install the cotter pin and dust cap, and tighten all hardware.
EXTENDED STORAGE INSTRUCTIONS
The following preventative maintenance is recommended for extended periods of storage.
1.Check brake system for proper fluid level in master cylinder and bleed all lines.
2.Lubricate all links and pivots to prevent any rusting.
3.Remove wheel and drum assemblies and spray a good anti- corrosion compound (CRC formula
4.Grease all bearings and reinstall wheel and drum assemblies.
5.Make sure breakaway cable is fully released.
6.After extended storage, refer to the Maintenance Steps listed above to insure that the trailer is ready for towing.
PAGE 52 — MAYCO
